desktop-packages team mailing list archive

[Mathieu Trudel-Lapierre <mathieu.tl@xxxxxxxxx>]

Reassigning to the 'linux' package; NetworkManager only does the
establishing of the connection, everything else (including pushing bits
around), is done by the driver.

** Package changed: network-manager (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/816231

Title:
  Sony VPC-F11 (VPCF11GGX) AR9287 Wireless hangs on large file transfers
  over WPA2

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  This is another one in my series of bugs encountered in this Sony VPC-F11
  Others include: bug #791900 , bug #791904 and bug #791898

  Symptoms are that large file transfers over scp stall on my home network using WPA2 personal.  Seems random, but often enough that copying a folder of music stalled every 5 or 6 songs, and a folder of video, about two or three times per video.
  No other linux machine here has this problem.  Admittedly the others are still on Ubuntu 10.10, but I tested a transfer of 4 gigabytes of data on the Ubuntu 10.10 laptop with an AR9285 without any issues.

  Nothing is reported to dmesg and the problem fixes itself temporarily if I disconnect/reconnect in network manager or toggle the wifi kill switch.
  By toggling the kill switch I was able to successfully copy over 4 gigabytes of data, with perhaps 15 reconnects.

  I was hoping one of the workarounds in bug #761176 would help, but none of them seemed to do the trick, I get the feeling there were a few problems reported in that bug, and since it was closed out fixed, filed a new one.
  I've tested the 2.6.37 kernel, and 2.6.38 6-10 as well as -11 proposed.

  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/761176/comments/20
  appears to have similar hardware, although I don't know if the problem
  is the same.

  02:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
  	Subsystem: Foxconn International, Inc. Device e030
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin A routed to IRQ 16
  	Region 0: Memory at e7a00000 (64-bit, non-prefetchable) [size=64K]
  	Capabilities: <access denied>
  	Kernel driver in use: ath9k
  	Kernel modules: ath9k

  Plenty of dumps of the system in the other bugs mentioned.
  --- 
  Architecture: amd64
  DistroRelease: Ubuntu 11.04
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  IpRoute:
   172.16.103.0/24 dev wlan1  proto kernel  scope link  src 172.16.103.172  metric 2 
   169.254.0.0/16 dev wlan1  scope link  metric 1000 
   default via 172.16.103.1 dev wlan1  proto static
  Keyfiles: Error: [Errno 2] No such file or directory
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
  NonfreeKernelModules: nvidia
  Package: network-manager 0.8.4~git.20110319t175609.d14809b-0ubuntu3
  PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
  Tags:  natty
  Uname: Linux 2.6.38-10-generic x86_64
  UpgradeStatus: Upgraded to natty on 2011-04-20 (103 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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